ckelly
Lincoln, NE
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Okay, I'm about to do a little panic dance here. I just bought a new Yamaha EF2400is generator from Wise Equipment and tried hooking it up to the '07 Jayco 27BH w/Coleman Mach 3 Plus 13.5 AC unit. When I kick on the AC, nothing else on except the converter w/fully charged batteries, the little Yamaha goes to full throttle the AC unit sorta hums but won't start and finally the overload trips on the generator.
Sooo, now what? Do I have a $1100 generator I can't use??? OMG
The specs for the Mach 3 state 10.9 A for the compressor, and 3.4 A for the blower on High (I was on low, or 2.4 A) for a total wattage of 14.3A x 115V = 1644.5 W
Ideas??? HELLLLLPPP!!
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'07 Jayco 27BH - Delivery taken, 5/15/07
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rjf7g
Virginia
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Have you checked the output of the generator or the draw from the AC with a meter? According to the Yamaha web site, your generator produces:
Maximum AC Output 2400 watts
Rated AC Output 2000 watts
Rated / Maximum AC Current 16.7 / 20 amps @ 120V
Either your AC is drawing more than you expect, your generator is putting out less than you think, or you have something else drawing current.
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closurdo
Michigan
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Make sure that your hot water tank element is turned off.
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Wayne Dohnal
Banks, OR.
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Quote:Make sure that your hot water tank element is turned off. And that your fridge is on "gas only".
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BBFD
Outside Rochester, NY
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I have found that with my Coleman 13.5 in order to lower the draw I first start just the fan which draws nearly 5 amps and then settles down to around 3 amps. After the fan is running I then start the compressor by turning on the AC. This seems to cut down on the initial shock to the power supply (line current or generator). I used my Kill A Watt meter which is only rated to 15 amps and found that when I started everything at once the meter went into alarm mode and beeped. By starting each item separate it did not overload and alarm so maybe try that.
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dclark1946
Richardson,TX,USA
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Certainly check your ac current draw without the AC to see if there are any other significant loads. You should look into the ac/dc clamp on meters that Sears sells to check the current. You may however be too marginal. A soft start kit may help. Worse case, change your AC unit to a Mach 3 PS that draws 4A less current compared to the standard Mach 3. I have been able to start mine (PS version)with a Honda EU2000. Even so the peak current is on the order of 20A when powered from an ac outlet.
Dick
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Dick & Karen (converted tent campers)
Richardson,TX
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ckelly
Lincoln, NE
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Water heater is off, fridge is off, lights are off. Nothing is on. I have not pulled fuse in converter, but I shouldn't have to - should I?
No, I haven't put a current meter on it not do I know if I can get it done in time for that and get whatever fixed/exchanged/etc. anyway...We're leaving for Yellowstone next Friday, June 20th!!
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ckelly
Lincoln, NE
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I've read these do have to "break in" a while, is this correct?
I'll get a clamp on ammeter tomorrow and see what's going on. Do I need to tear an extension cord apart and get across the "hot" wire only for those?
Change the AC unit? Is the Mach 1 and upgrade from the Mach 3??
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JConatser
Smyrna, Tennessee, USA
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ckelly wrote:... Do I need to tear an extension cord apart and get across the "hot" wire only for those?..
That's one way to do it... however, you should be able to buy a small adapter made just for that purpose at the same place you buy the clamp-on ammeter.
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Anyoltime
Strathmore,AB
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You have a locked rotor amperage at start up of over 35 amps.get a soft start kit and the yammy should hang in there long enough to roll it and bring down the amp. to running capacity.Doing a sequential start up as suggested above will help.
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